What you have been saying is not true and some altcoins can still able to get a huge pump even without the help that must have come from the bitcoin. I do agree with if it's not all of top coins are getting their price from the use case but it's coming from the speculation.
Yes, I see that too, now Altcoin doesn't need the help Bitcoin for Pump. There are some coins that can Pump themselves without the help Bitcoin, This is purely due to supply and demand, so if many people buy, the price will go to the moon. Today I see the price ERT going up drastically, reaching over 150%.
yes, ERT is up more than 150%, but one should be careful with tokens like ERT, it could go down faster than you think, you should always follow development and news, community size, and their announcement thread has only one updater, that is active now after some months, and that coincide with strong uphold momentum, looks like pump-and-dump, be careful and do your own analysis